The coat of the traditional tabby, or ‘bullseye’ or "swirled," is the most typical fur pattern of house cats. It features wide, rounded spots on the sides and a clear ‘M’ on the forehead.
Also referred to as silver or gray, blue is a rare cat color (in real-life and in cat pictures ... pattern on cats is ...
Tyler Jordan, a Canadian PhD student in the College of Veterinary Medicine at North Carolina State University says tabby cats have what is called an agouti type hair colourization pattern.